Ribbing and perforating machine



H. c. SMITH I RIBBING AND PERFORATING MACHINE File M y 16, 1924 2 Sheets-Sheet 1 Jan .5,1926. I 1,568,537

Jan. 5 I H. c. SMITH RIBBING PER-FORATING MACHINE Filed May 1 6 I Y 2 Sheets-Sheet 2 I Fatente'd Jan. 5,1926. 3 i I' i/ I v U NITED STATES PATENT OFFICE."

HENRY COLLIER SMITH, OF ST. MARYS, OHIO, ASSId-NOR TO THE QUICKWORK COM- PANY, OF ST. MARYS, OI- IIO, A CORPORATION OF OHIO.

I RIBBING AND PERFORATING MACHINE.

4 Application filed May 16, 1924. Serial No. 713,722.

To all whom it may concern. 7 A rib 5'is forced up between the rows of Be it known that I,- HENRY COLLIER perforations and edge flanges 6 may be bent SMITH, a, citizen of the United States, and before or during the perforating and ribbing residing at St. Marys, in the county of Auoperation. 5 glaize and State of Ohio, have invented a new The machine for producing these perforaand Improved Ribbing and Perforating Mations and ribs isshown to comprise a bed chine, of which the following is a specifica- 8 in which a shaft 9 is journaled in any detion. sired manner and this shaft carries a pulley This invention relates to the construction 10 anda spur pinion 11. A pair of pedestals.

10 of rolls'for perforating and ribbing sheets carry'bear'ings for the roll'shafts 12 and 13 v of metal and other comparatively non-resiliwhich are'connectedby the gears 14 and ent material, and its object is to provide rolls A large gear 16 on the shaft 13 meshes with of this character with readily removable the pinion 11. Any other desired m perforating and ribbing dies which maybe may be employed for supporting and drivremoved and replaced at little expense in mg the shafts 12 and'13. A cross frame 17 labor and material. I carries the guide plates 19 and 20 shown in This invention consists in a pair of rolls F igw n Whic th he ts of me l having circumferential and longitudinal are slid to the rolls andthese plates prevent grooves, rings of perforating dies seated in thesesheets from twisting and buckling.

20 the circumferential grooves and ribbing dies On the shafts 12 and 13 are secured the seated in the longitudinal grooves, the perrolls 21 and 22 which are formed with c1rforating dies having extensions projecting cumferentlal grooves 23 and longitudinal beneath the ribbing dies so as to be held in g ooves 4. These rolls may be lnterposition thereby. I D changed, but I have shown the square-topped It further consists of rolls of this characdies 25 mounted in the grooves in the upper ter having longitudinal grooves which are roll and the sharptoothed dies 26 1n the of dove-tail cross section, ribbing dies fitting gr ves 111 the 10W el roll.

these grooves so as to be held therein and These perforatlng dies are preferably so as to hold the perforating dies in position, f m fr m II gS 0f 9 t vand. fi

9 and "disks attached to the endsof the rolls to ei g fi is ed to the dcslred' c o s seetlon prevent endwise movement of th ribbing are milled transversely to form the grooves dies. 1 27 for the ribbing dies by whibh they are vIt also consists of the details of construcheld in the circumferential grooves in the tion illustrated in the accompanying drawrolls. At the bottoms of thegrooves 27 are 35 ings and particularly pointed out in the the small notches 28.- After these rings of claims. Y dies are tempered they are easily broken In the drawings, Fig. 1 is afront elevation at these notches 28, after which they are of a machine for perforating and ribbing placed in the circumferential grooves 23. sheet metal, embodying a pair of my novel The longitudinal grooves 24 in the rolls 40 rolls. Fig.2 is a plan of a portion of sheet are of dove-tail cross section, as'are also metal perforated and ribbed by this mathe bottoms of the'ribbing dies 30 and 31. chine. Fig. 3 is a section on the line 3-3 As the rows of these perforating dies are of Fig. 2. Fig. 4 is an end elevation and positioned the ribbing dies are, slipped into Fig. 5 is a central vertical section of a pair position, extendin over the extensions or 45 of these improved rolls. Fig. 6 is an elevafeet 32 of the perforating dies and locking 1 tion-of a ring of the perforating dies for one them in place until all the die; in both rolls of the rolls and Fig. 7 is a similar view of a; are secured in position. The ribbing dies ring of dies for'the other roll. '30 are shown provided with grooves 38 and Similar reference characters refer to like the dies- 31 with ribs 33 to produce the ribs 50 parts throughout the several tiews. 5 on the sheet metal.

The sheet metal 1 shown in Figs. 2 and. 3 Disks 35 are shown secured to the ends of is formed with rows of perforations 2which the roll 21 and disks 36 to the ends of .the are produced by central and diagonal slits roll 22, overlapping the disks 35 but spaced and by bending the tongues} and 4 thus therefrom suflicient to permit the flanges 6 55 formed out of the original plane of the sheet." on the sheets 1 to pass between. If desired, 119

in the longitudinal grooves and rings of perforating dies mounted in the circumferential grooves, each perforating die embodying extensions projecting below theadjacent ribbing dies.

2. In a perforating'and ribbing machine, a pair of rolls having circumferential and longitudinal grooves, ribbing dies mounted in the longitudinal grooves and rings of perforating dies mounted in the circumferential grooves, each perforating die embodying extensions projecting below the adjacent ribbing dies, said longitudinal grooves and ribbing dies being dove-tailed in cross section.

3. In a perforating and ribbing machine, a pair of rolls having circumferential and vlongitudinal grooves, ribbing dies mounted in the longitudinal grooves and rings of perforating d es mounted in the circumferential grooves, each perforating die embodying extensions projecting below the adjacent ribbing dies, the perforating dies of one roll having flat-topped outer ends and the perforating dies of the other roll having sharp-toothed ends, the outer ends of the perforating dies of one roll extending between the perforating dies of the other roll.

4. In a perforating and ribbing machine,

- a pair of rolls having circumferential and longitudinal grooves, ribbing'dies mounted in the longitudinal grooves and rings of perforating dies mounted in the circumferential grooves, each perforating die embodying extensions projecting below the adjacent ribbing dies, said longitudinal grooves and ribbing dies being dove-tailed in cross section, and disks attached to the ends of. the rolls to prevent endwise movement of said ribbing dies.

5. In a perforating and ribbing machine,

a pair of rolls having circumferential and longitudinal grooves, ribbing dies mounted farther apart than the disks on the other roll so as to overlap them. I

6. A roll formed with circumferential and longitudinal grooves, the longitudinal tial grooves, and bars slidablein the longitudinal grooves to secure the dies in position.

7. In aperforating and ribbing machine, a pair of rolls formed with recesses in their faces, and ribbing and perforating dies mounted in said recesses, the perforating anlll ribbing dies alternating around the ro s.

8. In a perforating and ribbing machine, a pair of rolls embodying ribbing and perforating dies alternating around the rolls and adapted to simultaneously rib and perforate a sheet of metal passing through between the rolls.

HENRY COLLIER SMITH.

grooves having dove-tail cross sections, rings of dies mounted in the circumferen- 

